Velux Window Installation Help


R

RaT

I have 3 velux roof windows (GGL style) installed in a newly built room. The
roof is a standard wood rafter construction, felted and tiled. The felt and
batterns were put on the roof before the velux went in. The velux flashing
then went on, then the tiles. Around the edges of the velux installation,
the roofing felt was tucked into the window aperture, then the velux fitted.
Problem we have now is some water leakage around the edges of the velux. It
is running down on the felt that was tucked in. Now I know firstly that if
the tiling has been done properly there shouldn't be any leakage through
onto the felt, that is one problem to sort out. However, if any water does
get passed a tile onto the felt, then this should run down and of the felt
to the bottom of the roof. The way the felt was tucked into the aperture
does not seem right, especially above the Velux, as the felt does not
overlap the top section of velux flashing, meaning if any water on the felt,
runs down to the velux it goes under the velux flashing, then into the room.
the builder assures me it is the correct installation and that once the
leaks passed the tiles are sorted out then there will be no problem. the
information on the velux site and the brochures I have are not very clear.So
am I right in saying the roof felt, especially at the top of the velux
should overlap outside/on top off the velux flashing?
 
Ad

Advertisements

R

RaT

Thanks for the info...the builder says it is not necessary to fit the collar
BOX !Think we may have a disagreement here!
 
Ad

Advertisements

A

Andrew

RaT said:
Thanks for the info...the builder says it is not necessary to fit the
collar BOX !Think we may have a disagreement here!
When I was ordering my Velux from the merchants I asked for the flashing
collar and the sales guy said he had never heard them. He rang Velux while I
was there and was told the collar had to be fitted to validate the window
warranty. They only cost about £15 anyway!
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Similar Threads

Velux windows - DIY installation 12
Adjusting a Velux window - Help. 2
Help with roof pitch for velux windows 1
Velux installation 1
velux windows 0
Velux Windows 8
Velux windows 2
Velux window 1

Top